When pheochromocytoma occurs, it is generally recommended to visit the endocrinology department of a local hospital. Pheochromocytoma refers to tumors originating from the neuroectoderm, specifically chromaffin tissue. These tumors usually secrete catecholamines and can be classified into various types based on their origin. Patients typically exhibit a pronounced hypermetabolic state, such as malignant hypertension or hyperglycemia, and some suffer significant damage to the heart, kidneys, liver, and brain tissue due to malignant hypertension. For instance, this can lead to heart failure or hypertensive cerebral hemorrhage, severely threatening the patient's life. Treatment typically involves surgical intervention.